Axminster tube frame



Dec. 4, 1951 o. v. PAYNE AXMINSTER TUBE FRAME Filed July 5, 1948 2 FIG.I '2 INVENTOR OSCAR v. PAYNE Jam). 47

ATTORNEY Patented Dec. 4, 1951 AXBHNSTER TUBE FRAME Oscar V. Payne,Leicester, Mass, assignor to Crompton & Knowles Loom Works, Worcester,Mass., a. corporation of Massachusetts Application July 3, 1948, SerialNo. 36,983

10 Claims.

This invention relates to tube frames for Axminster looms and it is thegeneral object of the invention to provide a tube frame having yarntubes the yarn receiving mouths of which are disposed in such manner asto facilitate entry of large yarns and knots in the yarns.

An Axminster tube frame comprises an elongated carrier bar on which isrotatably mounted a spool wound with variously colored yarns arrangedthereon in conformity with the pattern requirements of the fabric beingwoven. The bar is customarily provided with a row of aligned yarn tubesthrough which the yarns pass. According to prior practice it has beencustomary to make the yarn receiving mouths of the yarn tubes of a widthnot exceeding the space assigned to the tube measured in the directionof the length of the bar. Mouths formed in this manner are so narrowthat it is diflicult for thic yarns and knots to enter them.

It is an important object of the present invention to change the shapeof the yarn receiving mouths and arrange them in such manner that eachmouth can be wider than has been possible under prior practice. Certainforms of yarn receiving mouths made according to the invention havesharp corners or notches which may interfere with easy entrance of aknot and it is a further object of the invention to provide a guard orguide plate which will cover the aforesaid corners or notches and directthe yarns to the wider parts of the mouths.

The guard has perforations which register with the wider parts of themouths, and it is another object of the invention to form the guard withfunnel like flanges which project into the mouths to afford a smoothentrance for the yarns and also assist in maintaining the mouths incorrect position.

With these and other objects in view which will appear as thedescription proceeds, the invention resides in the combination andarrangement of parts hereinafter described and set forth.

In the accompanying drawings, wherein two forms of the invention are setforth:

Fig. 1 is an elevation of one end of a tube frame made according to thepreferred form of the invention, one of the loom chains which supportstaken transversely through a group of yarn tubes on line 4-4, Fig. 1,

Fig. 5 is a view similar to Fig. 3 but shows the.

modification of the invention,

Fig. 6 is a front elevation looking in the direction of arrow 6, Fig. 5,

Fig. '7 is a view similar to a part of Fig. 2 but shows a yarn guard orguide which can be used with either form of the invention,

Fig. 8 is an enlarged vertical section on line 88,- Fig. '7, and

Fig. 9 is a plan view looking in the direction of arrow 9, Fig. 8.

Referring particularly to Figs. 1 and 2, the tube frame F includes anelongated preferably tubular carrier bar It] which may be of rectangularcross section. Extending upwardly from the carrier bar is a spoolbearing II on which is rotatably mounted'a yarn spool l2 wound with anumber of tuft yarns Y arranged side by side. A bracket l 3 also extendsupwardly from the carrier bar to engage a transporting chain l4. A hookl5 normally cooperates with the chain M to support the tube frame, butwhen the latter is to be moved to tuft forming position the hook ismoved away from-the chain by well-known clutch means not shown herein.

Extending along the front wall 20 of the carrier bar l0 and projectingdownwardly therefrom is a series or row of yarn tubes T which may bearranged in small groups and attached to supporting plates 2| secured at22 to the carrier bar. The lower ends of tubes T are formed with yarndelivery mouths 23 from which the yarns project downwardly when the tubeframe is in the tuft forming or vertical position shown in Fig. 2.

Thematter thus far described, except as noted hereinafter, may be ofusual construction and manipulated in the customary manner in anAxminster loom. During a tuft forming operation the lower ends of theyarn Y will be fastened to the fabric being woven, after which the tubeframe will be raised to pull off enough tuft yarn for the next row oftufts to be formed by the tube frame. As the tube frame rises the spooll2 will rotate and the yarns will pass down through the tubes T.

In carrying the present invention into effect provision is made forequipping each of the yarn tubes T with a yarn receiving mouth widerthan those customarily found in tube frames made according to priorpractice. As indicated in Fig. 4 the yarn tubes are seamless and may bemade of any approved material, such as thin metal or a plastic. Thesetubes are secured to the plate 2| in any desired manner, as by weldingor soldering when the tubes are metallic. When the tubes are plastic theplate 2| may be made of the same material so that it maybe fused withthe adjacent parts of the tubes.

As shown more particularlyin Fig. 3 each tube T of the preferred formhas an upwardly facing or opening yarn receiving mouth which issubstantially circular in form. In order that the mouths tances from thecarrier bar.

may be wider than the space assigned to their tubes measured lengthwiseof bar ill they are arranged in two rows as different distances from thecarrier bar. Thus, in Fig.3 alternate mouths 25 are spaced a substantialdistance from the plate 2 l, whereas the intermediate mouths 26 arecloser to and may be in direct engagement with the plate.

The mouths are preferably arranged in parallel rows which are parallelto the row of tubes T and also to the carrier bar and are so placed thatthe yarns leading from the spool'are divided is illustrated as adaptedto mouths of the preferred form. The guard is made of a sheet metalstrip All formed with an upright wing M which extends along and issecured to plate 2| by screws 22. Extending forwardly from the wing overthe mouths is a guard plate or zone 42 the forward edge of which ifdesired may be bent down as at into two planes or sheets one of whichdesignated at 21 enters the front mouths 25 and the other of whichdesignated at 28 enters the rear'mouths 2'5. Because of the arrangementof the mouths shown in Fig. 3 and the sheets of yarn shown in Fig. 2 itwill be understood that adjacentyarns are at different distances fromthe carrier bar, and each yarn will be comparatively free to turn onitself without interference on the part of the adjacent yarns shouldthis be necessary as a knot enters a mouth.

In the modification shown in Fig. 5 the yarn tubes T are secured to aplate 39 similar-to plate 2! and have yarn receiving mouths formed asisosceles triangles, the alternate mouths 3! having their bases 32 asubstantial distance from the plate while the intermediate mouths 33have their bases 34 closely adjacent to and lying along the plate 38. Asin the preferred form of the in vention, adjacent triangular mouths havethe centers of their areas located at different dis Referring moreparticularly to the triangular form of the mouths,

the bases of the alternate mouths 3i extend" substantia..-y parallel tobut spaced from the plate as indicated in Fig. 5.

In both forms of the invention the tubes will have their mouths formedby tools shaped to produce the round and triangular mouths shown 1respectively in Figs. 3 and 5. The mouths are integral with the tubesand are essentially contiguous with each other. In the modified form ofthe invention. all of the space between the aligned bases 32 of thealternate mouths 3i and the plate Si? is available for the formation ofmouths. Although this condition is not strictly true of the preferredform of the invention the mouths and have about as much usable area forreceiving a knot as do the triangular mouths.

It will be apparent from both Figs. 3 and 5 that the mouths have sharpcorners or notches. which might interfere with the entrance of yarns.

Thus, in the preferred form of the invention the mouths of the alternatetubes 25, while being essentially circular in section, are actuallyformed wi'h a small .restriction or notch 35 pointed toward the barplate 2E, and the intermediate mouths 128 are similarly formed with arestriction or notch 35*. In like manner the apices 8'? .of thetriangular mouths shown in Fig. 5 are formed as acute angles which mightinterfere with the entry of yarns. V

In order to prevent the yarns and any knotsv in from entering into thenotches 35 and 35 of the circular mouths and the apices of thetriangular mouths, provision is made to guide the toward the wider partsof the mouths and away from parts of the latter which might hold-a knot.

A guard or guide G,.shown more particularly in Figs. 7, 8 and 9, can beused with either of the terms of the invention shown in Figs. 3 or 5,but

43 along those edges of the mouths remote from the plate 2|. The bentdown part 43 is not essential, but when used will serve as means forentirely closing the mouths and keeping their thin edges from engagementwith the yarns.

The guardzone 42 as shown in Fig. 9 is provided with a plurality ofpreferably circular perforations which are arranged in two parallel rowsat difierent distances from the carrier bar. The perforations 45 of thefront row correspond to the alternate mouths 25, while those of the rearrow, shown at 41, correspond to the intermediate mouths 25. Theperforations open downwardly into the wide parts of the mouths underthem and guide yarns away from the restrictions 35 and 35. The center ofeach perforation is preferably over the center of the mouth areatherebelow.

The plate or zone 42 may if. desired have circular funnel shaped flanges55 struck downwardly therefrom around each perforation to guide theyarns into the corresponding mouths. While of the invention.

In preparing the tube frame for use, and referring more particularly tothe preferred form of the invention, the plates 2! with their attachedtubes T will be arranged along the length of the carrier bar l6 So thatthe mouths Z5 and 25 will be spaced at diiferent distances from theplate. if the character of the yarn is such that it can readily enterthe mouths without being held by the restrictions or notches S5 and 35the tube frame may then be ready for use, but if the yarn is. large itis desirable to apply the guard G to the carrier bar it in such positionthat its perforations will register with the mouths 25 and 25, The samegeneral procedure will be followed when the triangular mouths are used,the perforations 45 and M registering with the centers of the areas ofthe triangles.

Each yarn tube, whether of the form shown in Fig. 3 or 5, will have asubstantially straight yarn or thread passage 55 therethrough whichleads from the corresponding receiving mouth to the delivery mouththerebelow. The yarn passage is located between side walls 5'3 andsubstantially straight front and back edges 5? and 53, respectively, ofthe yarn tube. The long dimension of the passage in cross section isperpendicular to the carrier bar. The mouths. Whether circular ortriangular, are symmetrical about a plane passing through the edges 51and 53, as will be understood from Figs. 3 to 5. I

It will be understood from Fig. i that the tubes T are uniformly spacedalong the carrier bar and. each tube has assigned to it a spacecorrespond-- ingto the gauge of the tube frame. Thus, if seven yarntubes are employed to the inch, then /7" will be assigned to each tube,but it will be understood from an inspection of Figs. 3 5 that themouths are considerably wider than the spaces occupied by or'assigned.to their tubes, and can accommodate larger yarns and knots than couldthe mouths as formerly made.

the rear edge 58 of tube T, or an extension thereof, while the frontpart of mouth 28 is about midway between extensions of edges 5? and 58.A similar relation exists with respect to the front mouths 25. Ihecenter of each mouth is to one side of or eccentric relatively to thelongitudinal axis of the corresponding thread passage, and it is thiscondition which permits the use of the mouths wider than thoseheretofore possible.

From the foregoing it will be seen that the invention provides simplemeans for providing the yarn tubes of an Axminster-tube frame with yarnreceiving mouths which are wider than has been possible in priorpractice due to the fact that the mouths are located at differentdistances from the carrier bar and staggered so that each mouth will beat a distance from the carrier bar different from that of the adjacentmouths. This arrangement of the mouths permits the yarns to be dividedinto the two sheets or planes 2'! and 28, thus affording more spacearound each yarn to permit a knot in it to turn if necessary to enterits receivingmouth. In the preferred form of the invention the mouthsare substantially circular, whereas in the modified form the mouths aretriangular, but in both forms of the invention the centers of the areasof the mouths are arranged in two rows or lines which are located atdiiferent distances from and preferably parallel to the carrier bar.Also, when heavy yarns are used and it is desired to protect them andany knots in them from the smaller corners of the yarn receiving mouths,the guard G may be used which has perforations registered with the wideparts of the mouths.

Having thus described the invention it will be seen that changes andmodifications of the foregoing specific disclosure may be made withoutdeparting from the spirit and scope of the invention.

What is claimed as new is:

1. In an Axminster tube frame having a carrier bar provided with yarntubes having yarn receiving mouths arranged in rows located at differentdistances from the carrier bar, and a guard supported by the carrier barextending over said yarn tubes and having perforations registering withsaid mouths.

2. In an Axminster tube frame having a carrier bar provided with yarntubes having yarn receiving mouths arranged in rows located at differentdistances from the carrier bar, and a guard plate supported by thecarrier bar extending over and having funnel shaped openings thereinregistering with and opening downwardly into said mouths.

3. An Axminster tube frame having a carrier bar provided with a row ofyarn tubes each of which has a yarn receiving mouth, the centers of themouths of alternate tubes being farther from the carrier bar than thecenters of the mouths of the intermediate tubes, and a sheet metal platesupported by the carrier bar extending over said mouths and havingperforations registering with and opening downwardly into said mouths.

4. In an Axminster tube frame having a carrier bar, a yarn spoolrotatably supported on the carrier bar over the latter, a series of yarntubes mounted on and depending from the carrier bar, each yarn tubehaving an upwardly opening yarn receiving mouth, and a guard supportedon the carrier bar extending over said tubes below the spool and havingyarn receiving passages therethrough registering with and openingdownyvardly into said mouths.

5. An Axminster tube frame having a carrier bar provided with yarn tubeshaving yarn receiving mouths the centers of which are arranged in tworows parallel to and at diiferent distances from the carrier bar, and aguard supported by the carrier bar extending over the yarn tubes andhaving perforations registering with said mouths.

6. In an Axminster tube frame having a carrier bar. a yarn spoolrotatably mounted on the carrier bar over the latter, a series of yarntubes mounted on the bar, each tube having a substantially circular yarnreceiving mouth, said mouths having their centers arranged in two Flines parallel to and at different distances from the bar, alternatemouths having their centers on one line and the intermediate mouthshaving their centers on the other line, and a guard extendin over theyarn tubes and having perforations registering with said mouths.

7. In an Axminster tube frame having a carrier bar, a series of yarntubes mounted on the bar, each tube having a substantially circular yarnreceiving mouth, said mouths having their centers arranged in two linesparallel to and at different distances from the bar, alternate mouthshaving their centers on one line and the intermediate mouths havingtheir centers on the other line, and a guard plate supported by thecarrier bar over said yarn tubes and having circular perforationsregistering with said mouths.

8. In an Axminster tube frame having a carrier bar, a series of yarntubes mounted on the bar, each tube having a yarn receiving mouth formedas an isosceles triangle, the sides of adjacent mouths lying along andclosely adjacent to each other, the bases of alternate triangular mouthsextending along close to said carrier bar and the bases of theintermediate triangular mouths being parallel to but spaced farther fromthe bar than the first named bases.

9. In an Axminster tube frame having a carrier bar, a series of yarntubes mounted on the bar, each tube having a yarn receiving mouth formedas an isosceles triangle, the bases of alternate triangular mouthsextending along close to said carrier bar and the bases of theintermediate triangular mouths being parallel to but spaced far-- therfrom the bar than the first named bases, and a guard plate supported bythe carrier bar over said yarn tubes and having perforations registeringwith said mouths.

10. In an Axminster tube frame having a carrier bar. a series of yarntubes mounted on the bar, each tube having a triangular shaped yarnreceiving mouth, the sides of adjacent mouths lying along and closelyadjacent to each other, the mouths of adjacent yarn tubes being reversedwith respect to the carrier bar.

OSCAR V. PAYNE.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,519,987 Bixby Dec. 16, 1924FOREIGN PATENTS Number Country Date 1,283 Great Britain of 1908 317,193Great Britain Aug. 15, 1929

